摘要
针对电压型传感器输出信号具有信号幅值微弱、信噪比低、输出内阻大等特点,结合各种传统的微弱信号信号检测方法,设计了一种具有前置放大、自适应带通滤波、增益可调等功能的去噪检测系统,主要是对输出信号为正弦信号的传感器进行信号去噪和检测。经实验验证该系统具有抑制噪声、抗干扰能力强、信号幅值可编程控制等优点,同时也能有效去除传感器输出信号的噪声信号,为后续的数据采集奠定基础。
This paper combines with a variety of traditional signal detection methods of weak signal,and designs a kind of denoising detection system with functions such as preamplification,self-adaptive band-pass filter,and gain adjustability. This system is mainly to the signal denoising and detection of output signal for the sinusoidal signal sensor,which is verified by the experiment that it has a series of virtues such as restraining noise ability,trong anti-jamming capability,and programmable control signal amplitude,meanwhile it can also effectively remove the noise signal of output signal of sensor.
出处
《工业控制计算机》
2016年第7期68-69,共2页
Industrial Control Computer
关键词
微弱信号
抗干扰
自适应滤波器
weak signal,anti-interference,self-adapting Filter
